I want to build a custom Twincam and need to wire the ignition. How do I do it?

Use the TC88-2P module. For the best results, use a wiring harness from a specialty after market manufacturer, such as Wires Plus, made specifically for the this type of application. If you elect to try making your own harness, the pin outs are the same on the unit as the stock model. At a minimum for the ignition, you will need to install a map sensor, crank position sensor and correct Twincam .5 ohm coil, or our Dyna DC6-6 coil.